Work expenses

Phone, data and internet

The work-related portion of personally paid phone, internet and data costs.

Who can claim

This deduction is available to individuals.

  • You incurred and paid the expense yourself.
  • The expense has a direct connection with earning your current employment income.
  • The service is used to perform employment duties.

What you cannot claim

  • Do not include a private or domestic portion.
  • Do not claim an item or cost your employer or another party provided, paid or reimbursed; if partly reimbursed, claim only the unreimbursed eligible portion.
  • A taxable allowance is generally declared as income. It does not automatically create or prevent a deduction; claim only the actual eligible amount you incurred.
  • Do not duplicate phone, internet, stationery or consumable costs already covered by the working-from-home fixed-rate method.

How the amount is worked out

Total personally paid cost multiplied by the substantiated work-use percentage, unless a fixed-rate method already covers the expense.

Records the ATO expects

  • Service bills
  • Representative work-use record
  • Calculation of work percentage

Where this rule comes from

Primary source: ATO Employees guide for work expenses (Document version dated 5 December 2025). Reviewed 30 July 2026. Covers the 2025-26 and 2026-27 income years.

Next steps